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2 years ago

7

Supplementary content SC is usually an important part of a webpage (but is not required for a page to receive a high or even hig

hest rating. True or False
Supplementary content SC is usually an important part of a webpage (but is not required for a page to receive a high or even highest rating). TRUE.

Computers and Technology

1 answer:

vredina [299]2 years ago

6 0

Answer:

True

Explanation:

In a web page, there are two categories of content, they are, the main content and the supplementary content.

The main content holds the needed information of the web page and changes from page to page, while the supplementary content, as the name implies, supports the quality of the main content. It content can be duplicated in multiple pages and does not need a high rating to promote the quality of a web page.

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Oxnard Casualty wants to ensure that their e-mail server has 99.98 percent reliability. They will use several independent server

sattari [20]

Answer:

The smallest number of servers required is 3 servers

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Explanation:

Given

$Reliability = 99.98\%$

$Individual Servers = 95\%$

Required

Minimum number of servers needed

Let p represent the probability that a server is reliable and the probability that it wont be reliable be represented with q

Such that

$p = 95\%\\$

It should be noted that probabilities always add up to 1;

So,

$p + q = 1$ '

Subtract p from both sides

$p - p + q = 1 - p$

$q = 1 - p$

Substitute $p = 95\%\\$

$q = 1 - 95\%$

Convert % to fraction

$q = 1 - \frac{95}{100}$

Convert fraction to decimal

$q = 1 - 0.95$

$q = 0.05$

------------------------------------------------------------------------------------------------

<em>To get an expression for one server</em>

The probabilities of 1 servers having 99.98% reliability is as follows;

$p = 99.98\%$

Recall that probabilities always add up to 1;

So,

$p + q = 1$

Subtract q from both sides

$p + q - q = 1 - q$

$p = 1 - q$

So,

$p = 1 - q = 99.98\%$

$1 - q = 99.98\%$

Let the number of servers be represented with n

The above expression becomes

$1 - q^n = 99.98\%$

Convert percent to fraction

$1 - q^n = \frac{9998}{10000}$

Convert fraction to decimal

$1 - q^n = 0.9998$

Add $q^n$ to both sides

$1 - q^n + q^n= 0.9998 + q^n$

$1 = 0.9998 + q^n$

Subtract 0.9998 from both sides

$1 - 0.9998 = 0.9998 - 0.9998 + q^n$

$1 - 0.9998 = q^n$

$0.0002 = q^n$

Recall that $q = 0.05$

So, the expression becomes

$0.0002 = 0.05^n$

Take Log of both sides

$Log(0.0002) = Log(0.05^n)$

From laws of logarithm $Loga^b = bLoga$

So,

$Log(0.0002) = Log(0.05^n)$ becomes

$Log(0.0002) = nLog(0.05)$

Divide both sides by $Log0.05$

$\frac{Log(0.0002)}{Log(0.05)} = \frac{nLog(0.05)}{Log(0.05)}$

$\frac{Log(0.0002)}{Log(0.05)} = n$

$n = \frac{Log(0.0002)}{Log(0.05)}$

$n = \frac{-3.69897000434}{-1.30102999566}$

$n = 2.84310893421$

$n = 3 (Approximated)$

<em>Hence, the smallest number of servers required is 3 servers</em>

6 0

2 years ago

The valid call to the function installApplication is

Zanzabum

Answer:

B. installApplication(‘A’, 1);

Explanation:

Given

The above code segment

Required

The correct call to installApplication

The function installApplication is declared as void, meaning that it is not expected to return anything.

Also, it receives a character and an integer argument.

So, the call to this function must include a character and an integer argument, in that order.

Option D is incorrect because both arguments are integer

Option C is incorrect because it passes no argument to the function.

Option A is incorrect because it receives an integer value from the function (and the function is not meant not to have a return value).

Option B is correct

8 0

2 years ago

A diagram of a flow chart to find the average of 10 numbers

Nat2105 [25]

Answer:

Kindly check attached picture

Explanation:

Flowchart gives a graphical representation of a steps taken towers the execution of a program.

In the flowchart attached, A variable was initialized and set to 0 ; then a for loop was used to iterate integers 1 up to 10, for each number. It is added to the initialized variable sum until all the 10 integer numbers are added. The the average is obtained by dividing by 10.

4 0

2 years ago

A photograph is taken by letting light fall on a light-sensitive medium, which then records the image onto that medium.

Andru [333]

True. At least that's how it is for camera's that print photos. Not digital cameras

4 0

3 years ago

Read 2 more answers

Given two int variables distance and speed, write an expression that divides distance by speed using floating point arithmetic,

Vsevolod [243]

Answer:

float(distance) / speed

Explanation:

Given the variable <em>distance</em> and <em>speed</em> in a program that hold a integer value respectively. We can perform the division between the two variable using / operator. Since both distance and speed are integers, we need to convert one of them to float type to perform the floating point arithmetic. Otherwise the division output will be rounded up to the nearest integer which is not a desired result.

7 0

3 years ago